CSI Recruits Heroes' Greg Grunberg

The Heroes and Alias alum will play Len Bryant, a white-collar everyman fighting addiction at a high-end rehab facility. He is determined to get sober in order to win back his children. Grunberg's episode will air in early November.

Returning fall shows: Where we left off and what's next

The actor is also known for his roles on Felicity and, most recently, Masters of Sex.

The Heroes and Alias alum will play Len Bryant, a white-collar everyman fighting addiction at a high-end rehab facility. He is determined to get sober in order to win back his children. Grunberg's episode will air in early November.

Returning fall shows: Where we left off and what's next

The actor is also known for his roles on Felicity and, most recently, Masters of Sex.